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RTCs

Compare Image Name Manufacturer Pricing(USD) Quantity Weight(Kg) Size(LxWxH) Datasheet Factory Lead Time Mount Packaging Published Series Pbfree Code Part Status Moisture Sensitivity Level (MSL) Number of Terminations ECCN Code Max Operating Temperature Min Operating Temperature Operating Supply Voltage Length RoHS Status Lead Free Contact Plating Radiation Hardening Number of Pins Additional Feature Package / Case Interface Reach Compliance Code Width Thickness Mounting Type Operating Temperature Technology Height Seated (Max) HTS Code Type JESD-609 Code Terminal Finish Terminal Position Terminal Form Peak Reflow Temperature (Cel) Supply Voltage Time@Peak Reflow Temperature-Max (s) Base Part Number Pin Count Temperature Grade Surface Mount Terminal Pitch JESD-30 Code Supply Voltage-Min (Vsup) Operating Temperature (Max) Operating Temperature (Min) Subcategory Qualification Status Power Supplies Supply Voltage-Max (Vsup) Feature Supplier Device Package Logic Function Screening Level Memory Size Function Number of Bits Voltage - Supply Time Format External Data Bus Width uPs/uCs/Peripheral ICs Type Clock Frequency Time-Min Interrupt Capability Volatile Information Access Method Number of Timers Date Format Current - Timekeeping (Max) Voltage - Supply, Battery
RX-4571SA:B3 PURE SN RX-4571SA:B3 PURE SN EPSON 0.0000
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0.00000000 download 13 Weeks Tape & Reel (TR) RX-4571SA Active 1 (Unlimited) ROHS3 Compliant 14-SOIC (0.209, 5.30mm Width) 3-Wire Serial Surface Mount -40°C~85°C Clock/Calendar Alarm, Leap Year 14-SOP 1.6V~5.5V HH:MM:SS (24 hr) YY-MM-DD-dd 0.95μA~1μA @ 3V~5V
RTC-72421A: PURE SN RTC-72421A: PURE SN EPSON 0.0000
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0.00000000 download RTC-72421 Not For New Designs 1 (Unlimited) ROHS3 Compliant 18-DIP (0.300, 7.62mm) Parallel Through Hole -10°C~70°C Clock/Calendar Leap Year 4.5V~5.5V HH:MM:SS (12/24 hr) 5μA~10μA @ 2V~5V
RTC-62421A RTC-62421A EPSON 0.0000
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0.00000000 download Tube Obsolete 1 (Unlimited) Non-RoHS Compliant 18-DIP (0.300, 7.62mm) Parallel Through Hole -40°C~85°C Clock/Calendar Leap Year 18-DIP 4.5V~5.5V HH:MM:SS (12/24 hr) YY-MM-DD-dd 1.8μA~3μA @ 2V~5V
RX-4801SA:UB0 PURE SN RX-4801SA:UB0 PURE SN EPSON 0.0000
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0.00000000 download Tape & Reel (TR) RX-4801SA Not For New Designs 1 (Unlimited) 14 ROHS3 Compliant 14-SOIC (0.197, 5.00mm Width) 4-Wire Serial Surface Mount -40°C~85°C CMOS Clock/Calendar DUAL GULL WING 3V YES 1.27mm R-PDSO-G14 Timer or RTC Not Qualified 3V Alarm 1.6V~5.5V SECONDS Y YES SERIAL, FIXED PROTOCOL 2.1μA~3.4μA @ 3V~5V
RV-3049-C3-32.768KHZ-OPTION-A-TB-QA RV-3049-C3-32.768KHZ-OPTION-A-TB-QA Micro Crystal 0.0000
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0.00000000 download 2 Weeks Tape & Reel (TR) Automotive, AEC-Q200 Active 1 (Unlimited) ROHS3 Compliant 10-VCDFN SPI, 4-Wire Serial Surface Mount -40°C~125°C TA Clock/Calendar Gold Flash (Au) 260 40 Alarm, NVRAM, RAM, Trickle Charger 2B 8B 1.3V~5.5V HH:MM:SS YY-MM-DD-dd 1μA @ 3V
ISL12027AIV27Z ISL12027AIV27Z Intersil 0.0000
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DS1689S-TRL DS1689S-TRL Maxim Integrated 0.0000
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0.00000000 download Surface Mount Tube 2005 Obsolete 1 (Unlimited) Non-RoHS Compliant Contains Lead 28-SOIC (0.295, 7.50mm Width) Parallel Surface Mount 0°C~70°C Clock/Calendar DS1689 NVSRAM 114B 2.7V~3.3V 4.5V~5.5V HH:MM:SS (12/24 hr) YY-MM-DD-dd 2mA @ 3V 3mA @ 5V 2.5V~3.7V
R2045S-E2-FE R2045S-E2-FE Ricoh Electronic Devices Company 0.0000
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0.00000000 download 9 Weeks Tape & Reel (TR) Active 1 (Unlimited) RoHS Compliant TIMER, REAL TIME CLOCK
1337GCSRI8 1337GCSRI8 Renesas Electronics America Inc. 0.0000
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0.00000000 download Tape & Reel (TR) Obsolete 3 (168 Hours) Non-RoHS Compliant 16-SOIC (0.295, 7.50mm Width) I2C, 2-Wire Serial Surface Mount -40°C~85°C Clock/Calendar IDT1337 Alarm, Leap Year, Square Wave Output 16-SOIC 1.8V~5.5V HH:MM:SS (12/24 hr) YY-MM-DD-dd 0.6μA @ 1.3V~1.8V
ISL12057IRUZ-T ISL12057IRUZ-T Renesas Electronics America Inc. 0.0000
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0.00000000 download Tape & Reel (TR) Obsolete 1 (Unlimited) ROHS3 Compliant 8-UFDFN I2C, 2-Wire Serial unknown Surface Mount -40°C~85°C Clock/Calendar ISL12057 Alarm, Leap Year 1.8V~3.6V HH:MM:SS (12/24 hr) YY-MM-DD-dd 0.65μA @ 1.8V
MCP79402-I/MS MCP79402-I/MS Microchip Technology 0.0000
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0.00000000 download 7 Weeks Surface Mount Tube 2011 Active 1 (Unlimited) 8 EAR99 3mm ROHS3 Compliant Lead Free No 8 8-TSSOP, 8-MSOP (0.118, 3.00mm Width) I2C, 2-Wire Serial 3mm Surface Mount -40°C~85°C CMOS 1.1mm Clock/Calendar e3 Matte Tin (Sn) - annealed DUAL 260 2.5V 40 MCP79402 8 0.65mm Timer or RTC 2/5V Alarm, Leap Year, Square Wave Output, SRAM, Unique ID Clock TS 16949 64B 1.8V~5.5V HH:MM:SS (12/24 hr) 0.4MHz SECONDS Y NO I2C 1 YY-MM-DD-dd 1.2μA Typ @ 3.3V 1.3V~5.5V
PT7C43190LEX PT7C43190LEX Diodes Incorporated 0.0000
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0.00000000 download Tape & Reel (TR) Obsolete 1 (Unlimited) 8 EAR99 4.4mm ROHS3 Compliant 8-TSSOP (0.173, 4.40mm Width) 3-Wire Serial 3mm Surface Mount -40°C~85°C CMOS 1.2mm 8542.39.00.01 Clock/Calendar DUAL 3V YES 0.65mm R-PDSO-G8 Timer or RTC Not Qualified 3/5V Alarm, Leap Year, Square Wave Output 1.35V~5.5V HH:MM:SS (12/24 hr) SECONDS Y NO SERIAL, 3-WIRE 1 YY-MM-DD-dd 0.6μA~14μA @ 3V~5V
ISL12024IVZ ISL12024IVZ Renesas Electronics America 0.0000
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0.00000000 download 7 Weeks Tube 1999 Active 1 (Unlimited) EAR99 ROHS3 Compliant 8-TSSOP (0.173, 4.40mm Width) I2C, 2-Wire Serial Surface Mount -40°C~85°C 8542.39.00.01 Clock/Calendar e3 Matte Tin (Sn) NOT SPECIFIED NOT SPECIFIED ISL12024 8 Alarm, Leap Year, Unique ID 2.7V~5.5V HH:MM:SS (12/24 hr) YY-MM-DD-dd 10μA~20μA @ 2.7V~5.5V 1.8V~5.5V
DP8570AVX DP8570AVX Texas Instruments 0.0000
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0.00000000 download Surface Mount Tape & Reel (TR) Obsolete 2A (4 Weeks) 28 EAR99 5V 11.43mm Non-RoHS Compliant Contains Lead No 28 4 PROGRAMMABLE MODES FOR TIMER; 4 SELECTABLE OSCILLATOR FREQUENCIES 28-LCC (J-Lead) Parallel 11.43mm Surface Mount -40°C~85°C CMOS 4.57mm 8542.39.00.01 Timer Clock Peripheral (TCP) e0 Tin/Lead (Sn/Pb) QUAD 245 5V 30 DP8570 28 1.27mm Timer or RTC Alarm, Leap Year Clock 44B 16 4.5V~5.5V HH:MM:SS:hh (12/24 hr) 8 10MHz 1/100SECOND Y YES 2 YY-MM-DD-dd 1μA @ 5V 2.2V~5.1V
PT7C4337WE PT7C4337WE Diodes Incorporated 0.0000
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0.00000000 download 8 Weeks Surface Mount Tube 2013 Last Time Buy 1 (Unlimited) 8 EAR99 4.9mm RoHS Compliant No 8 8-SOIC (0.154, 3.90mm Width) I2C, 2-Wire Serial 3.9mm Surface Mount -40°C~85°C CMOS 1.75mm Clock/Calendar DUAL 3.3V 1.27mm Timer or RTC 2/5V Alarm, Leap Year, Square Wave Output Clock 1.8V~5.5V HH:MM:SS (12/24 hr) 0.032MHz SECONDS Y YES I2C 1 YY-MM-DD-dd 0.8μA @ 1.3V~1.8V
1339-31DCGI8 1339-31DCGI8 Integrated Device Technology (IDT) 0.0000
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0.00000000 download 7 Weeks Surface Mount Tape & Reel 2006 yes Active 1 8 EAR99 85°C -40°C 3.3V 4.9mm RoHS Compliant Lead Free Tin 8 SOIC 2-Wire, I2C, Serial 3.9mm 1.5mm CMOS 1.75mm e3 DUAL 260 30 8 INDUSTRIAL 1.27mm Timer or RTC Not Qualified 3.6/5V 5.5V Clock HH:MM:SS (12/24 hr) 0.032MHz SECONDS Y YES I2C 1 YY-MM-DD-dd
MCP795W21T-I/ST MCP795W21T-I/ST Microchip Technology 0.0000
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0.00000000 download 18 Weeks Surface Mount Tape & Reel (TR) 2011 Active 1 (Unlimited) 14 EAR99 5mm ROHS3 Compliant No 14 ALSO OPEARTES AT 1.8 V MINIMUM SUPPLY AT 3 MHZ 14-TSSOP (0.173, 4.40mm Width) SPI 4.4mm Surface Mount -40°C~85°C CMOS 1.2mm 8542.39.00.01 Clock/Calendar e3 Matte Tin (Sn) - annealed DUAL 260 5V 40 MCP795W21 14 0.65mm Timer or RTC 2/5V Alarm, EEPROM, Leap Year, Square Wave Output, SRAM, Unique ID, Watchdog Timer Clock 64B 8 1.8V~3.6V HH:MM:SS:hh (12/24 hr) 10MHz 1/100SECOND Y NO YY-MM-DD-dd 1μA @ 1.8V~5.5V 1.3V~3.6V
PT7C4337AWEX PT7C4337AWEX Diodes Incorporated 0.0000
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0.00000000 download 21 Weeks Tape & Reel (TR) 2004 Active 1 (Unlimited) 8 EAR99 4.9mm ROHS3 Compliant 8-SOIC (0.154, 3.90mm Width) I2C, 2-Wire Serial 3.9mm Surface Mount -40°C~85°C TA CMOS 1.75mm Clock/Calendar DUAL NOT SPECIFIED 3.3V NOT SPECIFIED YES 1.27mm R-PDSO-G8 Alarm, Leap Year, Square Wave Output 1.8V~5.5V HH:MM:SS (12/24 hr) I2C 1 YY-MM-DD-dd 0.8μA @ 1.3V~1.8V
PT7C4302ZEE PT7C4302ZEE Diodes Incorporated 0.0000
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0.00000000 download Obsolete 1 (Unlimited) 8-WFDFN Exposed Pad 3-Wire Serial Surface Mount -40°C~85°C TA Clock/Calendar Leap Year, NVSRAM, Square Wave Output, Trickle-Charger 31B 1.2V~5.5V HH:MM:SS (12/24 hr) YY-MM-DD-dd 25.3μA~81μA @ 2V~5V 1.5V~5.5V
DS1500YE DS1500YE Maxim Integrated 0.0000
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0.00000000 download Surface Mount Tray 2005 Obsolete 3 (168 Hours) 32 EAR99 5V 18.4mm Non-RoHS Compliant Contains Lead No 32 32-LFSOP (0.724, 18.40mm Width) Parallel 8mm Surface Mount 0°C~70°C CMOS 1.24mm 8542.39.00.01 Clock/Calendar e0 Tin/Lead (Sn/Pb) DUAL 240 5V 20 DS1500 32 0.5mm Timer or RTC 5V Alarm, Leap Year, NVSRAM, Square Wave Output, Watchdog Timer, Y2K Clock 256B 4.5V~5.5V HH:MM:SS (24 hr) 8 SECONDS Y NO 1 YY-MM-DD-dd 5mA @ 4.5V~5.5V 2.5V~3.7V
PT7C43390WE PT7C43390WE Diodes Incorporated 0.0000
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0.00000000 download 9 Weeks Surface Mount 2007 Last Time Buy 1 (Unlimited) 8 EAR99 3V 4.9mm ROHS3 Compliant Tin 8 8-SOIC (0.154, 3.90mm Width) I2C, 2-Wire Serial 3.9mm Surface Mount -40°C~85°C CMOS 1.75mm Clock/Calendar e3 DUAL 260 3V 40 1.27mm Timer or RTC Not Qualified 3/5V Alarm, Leap Year, Square Wave Output Clock 1.35V~5.5V HH:MM:SS (12/24 hr) SECONDS Y NO I2C 1 YY-MM-DD-dd 0.6μA~0.7μA @ 3V~5V
M41T81MX6 M41T81MX6 STMicroelectronics 0.0000
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0.00000000 download Surface Mount Tube Obsolete 3 (168 Hours) 28 EAR99 17.96mm Non-RoHS Compliant Contains Lead 8 8-SOIC (0.154, 3.90mm Width) I2C, 2-Wire Serial 7.62mm Surface Mount -40°C~85°C CMOS 2.69mm Clock/Calendar e4 Nickel/Palladium/Gold (Ni/Pd/Au) DUAL NOT SPECIFIED 5V NOT SPECIFIED M41T81 28 1.27mm Timer or RTC Not Qualified 2.5/5V Alarm, Leap Year, Square Wave Output, Watchdog Timer Clock 20B 2V~5.5V HH:MM:SS:hh (24 hr) 0.032MHz 1/100SECOND Y NO I2C 1 YY-MM-DD-dd 100μA @ 2V~5.5V 2.5V~3.5V
R2062L02-E2 R2062L02-E2 Ricoh Electronic Devices Company 0.0000
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0.00000000 download 9 Weeks Tape & Reel (TR) Active 1 (Unlimited) 16 2.3mm RoHS Compliant 2.3mm CMOS 0.43mm QUAD NO LEAD 3.3V 16 INDUSTRIAL YES 0.4mm S-XQCC-N16 2.9V 85°C -40°C 5.5V TIMER, REAL TIME CLOCK 0.032MHz SERIAL, 3-WIRE
DS1673E-5 DS1673E-5 Rochester Electronics, LLC 0.0000
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0.00000000 download Tube no Obsolete 1 (Unlimited) 20 6.5mm Non-RoHS Compliant 3-CHANNEL, 8-BIT ADC 20-TSSOP (0.173, 4.40mm Width) 3-Wire Serial unknown 4.4mm Surface Mount 0°C~70°C MOS 1.1mm Portable System Controller e0 TIN LEAD DUAL 240 5V 20 20 YES 0.65mm R-PDSO-G20 COMMERCIAL Alarm, Leap Year, Watchdog Timer 4.5V~5.5V HH:MM:SS (12/24 hr) 1 0.032MHz SERIAL, 3-WIRE YY-MM-DD-dd 300μA @ 5V 2.5V~3.7V
PT7C4337BZEEX PT7C4337BZEEX Diodes Incorporated 0.0000
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0.00000000 20 Weeks Tape & Reel (TR) Active 8-WFDFN Exposed Pad I2C, 2-Wire Serial Surface Mount -40°C~85°C TA Clock/Calendar Alarm, Leap Year, Square Wave Output 1.8V~5.5V HH:MM:SS (12/24 hr) YY-MM-DD-dd 0.8μA @ 1.2V~1.8V
DS1685Q-3 DS1685Q-3 Rochester Electronics 0.0000
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0.00000000 download Tube no Obsolete 3 (168 Hours) 28 11.505mm Non-RoHS Compliant 28-LCC (J-Lead) Parallel unknown 11.505mm Surface Mount 0°C~70°C CMOS 4.57mm Clock/Calendar e0 TIN LEAD QUAD 245 3V NOT SPECIFIED 28 YES 1.27mm S-PQCC-J28 COMMERCIAL Alarm, NVSRAM, Square Wave Output, Y2K 242B 2.7V~3.7V HH:MM:SS (12/24 hr) 8 0.032MHz 1 YY-MM-DD-dd 2mA @ 3V 2.5V~3.7V
X1227S8I-2.7 X1227S8I-2.7 Intersil 0.0000
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0.00000000
M41T256YMH7F M41T256YMH7F STMicroelectronics 0.0000
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0.00000000 download Surface Mount Tape & Reel (TR) Timekeeper® Obsolete 1 (Unlimited) 44 EAR99 18.1mm ROHS3 Compliant Lead Free 44-BSOP (0.337, 8.56mm Width) requires SNAPHAT I2C, 2-Wire Serial 8.56mm Surface Mount -25°C~70°C CMOS 3.05mm 8542.39.00.01 Clock/Calendar DUAL 260 5V 10 M41T256 44 0.81mm R-PDSO-G44 Timer or RTC Not Qualified 5V Leap Year, NVSRAM Clock 32KB 4.5V~5.5V HH:MM:SS:hh (24 hr) 0.032MHz 1/100SECOND N NO I2C YY-MM-DD-dd 2.5mA @ 4.5V~5.5V 2.5V~3.5V
X1227S8I-2.7T1 X1227S8I-2.7T1 Intersil 0.0000
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0.00000000
PCF8563TS PCF8563TS NXP Semiconductors 0.0000
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0.00000000 download Tape and Reel Active Supplier Unconfirmed 8 Clock/Calendar/Alarm/Timer/Interrupt HH:MM:SS DW:DM:M:Y
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